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National Chung Hsing University Institutional Repository - NCHUIR > 工學院 > 化學工程學系所 > 依資料類型分類 > 期刊論文 >  Adsorption of glucose oxidase at platinum-multiwalled carbon nanotube-alumina-coated silica nanocomposite for amperometric glucose biosensor

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/129279

標題: Adsorption of glucose oxidase at platinum-multiwalled carbon nanotube-alumina-coated silica nanocomposite for amperometric glucose biosensor
作者: Tsai, M.C.;Tsai, Y.C.
蔡毓楨
關鍵字: Glucose biosensor;Platinum nanoparticle;Carbon nanotube;Glucose;oxidase;Adsorption;nanoparticles;electrode;immobilization;ph;construction;design;urease;sio2;film
日期: 2009
Issue Date: 2012-12-07 15:24:53 (UTC+8)
關連: Sensors and Actuators B-Chemical, Volume 141, Issue 2, Page(s) 592-598.
摘要: Glucose oxidase (GOx) has been immobilized in platinum-multiwalled carbon nanotube-alumina-coated silica (Pt-MWCNT-ACS) nanocomposite modified glassy carbon electrode by adsorption to provide a novel amperometric glucose biosensor. The morphology, nature, and performance of the resulting GCx-Pt-MWCNT-ACS nanobiocomposite modified glassy carbon electrode were characterized by field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, cyclic voltammetry, and amperometry. The influence of various experimental conditions was examined for the determination of the optimum analytical performance. The optimized glucose biosensor displayed a wide linear range of up to 10.5 mM, a high sensitivity of 113.13 mA M(-1) cm(-1), and a response time of less than 5 s. The sensitivity for the determination of glucose at the GOx-Pt-MWCNT-ACS nanobiocomposite modified glassy carbon electrode is better than at common GOx-Pt-CNT nanobiocomposite modified electrodes. The proposed biosensor has good anti-interferent ability and long-term storage stability after coating with Nafion, and it can be used for the determination of glucose in synthetic serum. (C) 2009 Elsevier B.V. All rights reserved.
Relation: Sensors and Actuators B-Chemical
Appears in Collections:[依資料類型分類] 期刊論文
[依教師分類] 蔡毓楨

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